205234223147 has 2 divisors, whose sum is σ = 205234223148. Its totient is φ = 205234223146.

The previous prime is 205234223099. The next prime is 205234223177. The reversal of 205234223147 is 741322432502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 205234223147 - 2³⁰ = 204160481323 is a prime.

It is not a weakly prime, because it can be changed into another prime (205234223177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102617111573 + 102617111574.

It is an arithmetic number, because the mean of its divisors is an integer number (102617111574).

Almost surely, 2^205234223147 is an apocalyptic number.

205234223147 is a deficient number, since it is larger than the sum of its proper divisors (1).

205234223147 is an equidigital number, since it uses as much as digits as its factorization.

205234223147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 35.

Adding to 205234223147 its reverse (741322432502), we get a palindrome (946556655649).

The spelling of 205234223147 in words is "two hundred five billion, two hundred thirty-four million, two hundred twenty-three thousand, one hundred forty-seven".